Results 71 to 80 of about 73,503 (266)

Spectrum and mass composition of cosmic rays in the energy range 1015–1018 eV derived from the Yakutsk array data

open access: yesEPJ Web of Conferences, 2013
A spectrum of cosmic rays within energy range 1015 − 3 × 1017 eV was derived from the data of the small Cherenkov setup, which is a part of the Yakutsk complex EAS array. In this, work a new series of observation is covered.
Sabourov A., Knurenko S.P.
doaj   +1 more source

Cosmic-ray protons, nuclei, electrons, and antiparticles under a two-halo scenario of diffusive propagation

open access: yes, 2015
We report calculations of cosmic-ray proton, nuclei, antiproton, electron and positron energy spectra within a "two-halo model" of diffusive transport.
Tomassetti, Nicola
core   +3 more sources

On the Galactic origin of ultra-high energy cosmic rays [PDF]

open access: green, 2023
V. N. Zirakashvili   +2 more
openalex   +1 more source

Low‐dose X‐ray radiation induces an adaptive response: A potential countermeasure to galactic cosmic radiation exposure

open access: yesExperimental Physiology, EarlyView.
Abstract Space exploration involves many dangers including galactic cosmic radiation (GCR). This class of radiation includes high‐energy protons and heavy ionizing ions. NASA has defined GCR as a carcinogenic risk for long‐duration space missions. To date, no clear strategy has been developed to counter chronic GCR exposure.
Siena Edwards   +3 more
wiley   +1 more source

Transition from galactic to extra-galactic cosmic rays

open access: yesJournal of Physics: Conference Series, 2006
3 pages, 2 eps figures, talk given at TAUP 2005, Zaragoza (Spain), 10-14 September ...
openaire   +2 more sources

A Rigorous Solution to the Superluminal Issue in the Diffusion Equation

open access: yesThe Astrophysical Journal
Superluminal propagation is an intrinsic problem in the diffusion equation and has not been effectively addressed for a long time. In this work, a rigorous solution to this issue is obtained under the assumption that particles undergo a random flight ...
Xing-Jian Lv   +4 more
doaj   +1 more source

Cosmic rays: extragalactic and Galactic [PDF]

open access: yes, 2014
From the analysis of the flux of high energy particles, $E>3\cdot 10^{18}eV$, it is shown that the distribution of the power density of extragalactic rays over energy is of the power law, ${\bar q}(E)\propto E^{-2.7}$, with the same index of $2.7$ that ...
Istomin, Ya. N.
core  

Gamma-ray signatures of cosmic ray acceleration, propagation, and confinement in the era of CTA

open access: yes, 2012
Galactic cosmic rays are commonly believed to be accelerated at supernova remnants via diffusive shock acceleration. Despite the popularity of this idea, a conclusive proof for its validity is still missing.
A. Bamba   +19 more
core   +3 more sources

Women in space: A review of known physiological adaptations and health perspectives

open access: yesExperimental Physiology, EarlyView.
Abstract Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
Millie Hughes‐Fulford   +4 more
wiley   +1 more source

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